Maliks Muwatta

Maliks Muwatta Book 002, Hadith Number 010.

Section : The Wudu of a Man who has been Asleep when he Gets Up to Pray.

Yahya related to me from Malik from Zayd ibn Aslam that Umar ibn al-Khattab said, "If you fall asleep lying down you must do wudu (before you pray)."

Yahya related to me from Malik from Zayd ibn Aslam that the ayat "You who believe! When you rise for prayer wash your faces, and your arms to the elbows, and wipe over your heads and your feet up to the ankles," refers to rising from bed, meaning sleep.

Yahya said that Malik said, "The situation with us is that one does not have to do wudu for a nose-bleed, or for blood, or for pus issuing from the body. One only has to do wudu for impurities which issue from the genitals or the anus, or for sleep."

Yahya related to me from Malik from Nafithat Ibn Umar used to sleep sitting and then would pray without doing wudu.